43 lines · cpp
1// RUN: %clang_cc1 -triple arm64-apple-ios -fptrauth-calls -fapple-kext -emit-llvm -o - %s | FileCheck %s2 3// CHECK: @_ZTV5TemplIiE = internal unnamed_addr constant { [5 x ptr] } { [5 x ptr] [ptr null, ptr @_ZTI5TemplIiE, ptr ptrauth (ptr @_ZN5TemplIiE1fEv, i32 0, i64 22189, ptr getelementptr inbounds ({ [5 x ptr] }, ptr @_ZTV5TemplIiE, i32 0, i32 0, i32 2)), ptr ptrauth (ptr @_ZN5TemplIiE1gEv, i32 0, i64 9912, ptr getelementptr inbounds ({ [5 x ptr] }, ptr @_ZTV5TemplIiE, i32 0, i32 0, i32 3)), ptr null] }, align 84 5struct Base {6 virtual void abc(void) const;7};8 9void Base::abc(void) const {}10 11void FUNC(Base* p) {12 p->Base::abc();13}14 15// CHECK: getelementptr inbounds (ptr, ptr @_ZTV4Base, i64 2)16// CHECK-NOT: call void @_ZNK4Base3abcEv17 18template<class T>19struct Templ {20 virtual void f() {}21 virtual void g() {}22};23template<class T>24struct SubTempl : public Templ<T> {25 virtual void f() {} // override26 virtual void g() {} // override27};28 29void f(SubTempl<int>* t) {30 // Qualified calls go through the (qualified) vtable in apple-kext mode.31 // Since t's this pointer points to SubTempl's vtable, the call needs32 // to load Templ<int>'s vtable. Hence, Templ<int>::g needs to be33 // instantiated in this TU, for it's referenced by the vtable.34 // (This happens only in apple-kext mode; elsewhere virtual calls can always35 // use the vtable pointer off this instead of having to load the vtable36 // symbol.)37 t->Templ::f();38}39 40// CHECK: getelementptr inbounds (ptr, ptr @_ZTV5TemplIiE, i64 2)41// CHECK: define internal void @_ZN5TemplIiE1fEv(ptr noundef nonnull align {{[0-9]+}} dereferenceable(8) %this)42// CHECK: define internal void @_ZN5TemplIiE1gEv(ptr noundef nonnull align {{[0-9]+}} dereferenceable(8) %this)43